Jacob baum



(Model.

J. BAUM.

PEBMUTATION LOOK.

Patented June '7, 1887.

Q elulll; i:

UNITED STATES PATENT OFFICE.

JACOB BAUM, OF CINCINNATI, OHIO, ASSIGNOR, BY DIREGT AND MEsNE ASSIGNMENTS, TO THE VICTOR sAEE AND LO K COMPANY, OF sAME PLACE.

PERMUTATlON-LOCK.

' SPECIFICATION forming part of Letters Patent. No. 364,467, dated June 7,1887.

Application filed September 24, 1885. Renewed May?', 1887. Serial No. 237,418. (Model To all whom it may concern:

Be it known that I, JACOB BAUM, a citizen f the United States, residing at Cincinnati, in .he county of Hamilton and State of Ohio,

- have invented certain new and useful Improvements in Permutation-Locks, of which the folowing is a specification, reference being bad herein to the accompanying drawings.

The first part of my invention comprises a novel combination' of notched driving-disk, gated rotating tumblers, pivoted latch-lever, and slide for actuating the bolt mechanism of a permutation-lock, the details of said combination and the operation of the various members of the same being hereinafter more full y described.

The second part of my invention comprises a novel construction of gated tumb1ers,whereby the Combinations can be readily altered, as hereinafter more fully described.

In the annexed drawings, Figure 1 is an elevation of my improved lock, the bolts being shot, the latch-lever engaged with the case,

' and a portion of the cap-plate of the latter broken away. Fig. 2 is another elevation, but

. showing the bolts retracted. Fig. 3 is a detached view, showing the dog of the latch-lever engaged with the notch of the driving-disk. Fig. 4 is a vertical section of a portion of the lock, said section being taken in the plane of the spindle and tumbler-arbor. Fig. 5 is a front elevation of one of the tumblers mounted on said arbor. Fig. 6 is a sectional rear elevation of the tumbler. Fig. 7 is a front elevation of the gated ring of said tumbler, the center piece being detached therefrom. Fig. 8 is a front elevation -of said detached center piece. Fig. 9 is a rear elevation thereof. Fig. 10 shows the segmental slide and retaining-ring of the tumbler. Fig. 11 is an enlarged axial section of a tumbler. Fig. 12 shows a more complex form of my invention.

A represents the lock-case, within which is fitted a slide, B, slotted near one end, as at b, to admit a guiding screw or stump, b, the opposite end of said slide being attached to a tie bar, 0, that carries any desired number of bolts, 0. Furthermore, the slotted end of this slide has pivoted to it at b a latch-lever, D, the

latter being provided with a tooth, d, fence d, dog (1, and detent or bend d, which detent is adapted to bear against an angle, a, of the case, when the bolts 0 are shot. Adapted to span said case is a bridge, E, having a bearing, 0, for a purpose that will presently appear. The dog d is arranged to engage with a notch, f, in the periphery of a driving-disk, F, provided with a series of perforations, f, with either one of which can be engaged the pin f", that communicates motion to the rotating tumblers. This drivingdisk is mounted on the customary knob-spindle, G, while the rotating tumblers H, of which any desired number may be used, are journaled on an arbor, I, projecting inwardly from a cap, 2', inclosing a portion of the lock mechanism, said arbor I being axially in line with said spindle. These tumblers may be simple disks or wheels having a series of holes, h, to admit pins h and gates J to receive the fence (1. I prefer, however, to employ the more complex form of tumbler seen in Figs. 5 to 11, inclusive, in which illustrations K represents an outer member or ring, whose innerperiphery is provided with suitably-shaped teeth, k, as more clearly seen in Fig. 7. This ring has preferably a counterbore, L, of somewhat greater diameter than the toothed portion of said ring, said bore having seated in it the detachable center piece M, which is a disk with a circular eye, in, that admits the arbor I. Furthermore, this disk has an annular flange, N, extending part way around the same and near the outer edge thereof, a portion of the hub of said disk being undercut, as seen at n in Fig. 11. Adapted to fit in between this segmented flange N and the counterbored portion of ring K is a complete annulus, O, the inner periphery of which is undercut, said annulus being secured to said flange either by solder or a pin or screw, 0.

Adapted to have a reciprocating rotary motion within a race formed by the annulus O and the undercut portion a of the disk-hub is a segmental slide, 1?, having chamfered edges 1) p, (seen in Fig. 10,) the travel ofsaid slide being limited by the opposite ends of the,incomplete annular flange N, as represented in Fig. 5. I

The rear disk, M, is slightly less in diameter than the front of the same, as seen in Fig. 9, and its smaller periphery is toothed at m, said teeth being practically of the same shape as the teeth is of ring K, so as to cause a secure interlocking of these component members K M of the tumbler.

Accidental shifting of the center piece, M, is prevented by one or more screws, Q, whose heads are countersunk in the ring K, while their points enter an annular groove, q, of the center piece, M, as seen in Figs. 6 and 11. The face of ring K has a dial, R,the degrees of which may be designated either by letters, numerals, or other characters appropriate for indicating the combinations of a lock.

The face of the disk M must be provided with a suitable pointer, to be used in changing the combinations. In Figs. 5 and 8 this indicator is shown as a double-headed arrow. The rear of the disk has a fixed pin, h, which is preferably diametrically opposite the arrow or other indicator.

In the more complex form of the lock seen in Fig. 12 the driving-disk F has a toothed wheel, S, that gears with another cogged wheel, T, the latter being provided with a pin, t, that operates the rotating tumblers in the same manner as does the pin f. (Seen in Fig. 4.) In this illustration the fence d is locatedcomparatively near the pivoted end of latch-lever D, so as to be in a proper position to enter the coincident gates of the tumblers, which latter must be mounted on an arbor in line with the pivot t of wheel T. Again, said illustration shows a hook, U, on the free end of lever D,which hook is adapted in a certain contingency to engage with a fixed stop, V, which latter must project from the cap or other fixture of the lock, so as not to interfere with the proper working of slide B. Furthermore, in this construction of the lock the gearing must extend completely around the wheels S and T, as indicated by the dotted circular lines in said Fig. 12.

WVhen the bolts 0 are shot, as seen in Fig. 1, the freeend of latch-lever Dis elevated, thereby causing the detent c of said lever to engage with the angle a of the lock-case, or with any equivalent stop that will prevent'said bolts being forced back without operating the tumblers. To retract these bolts the knob on the outer end of spindle G is manipulated in the usual manner until the combination has been effected, at which moment the notch f of driving-disk F will be brought under the dog (2, and all the gates J of the tumblers will be coincident with each other and in line with the fence d. At this instant the dog and fence drop, respectively, into the notch and coincident gates, thereby lowering the free end of the latch-lever D sufficiently to disengage its detent from the angle of the lockcase. A suitable turn of spindle G shifts said lever rearwardl-y, thereby retracting the slide 13 and carrying the bolts 0 along with it, so as to open the look without employing a special thereby prevent retraction of the bolts 0. In

a similar contingency the hook U (se'enin Fig. 12) would engage with the stop, pin, screw, or stump V.

Reference to Fig. 5 shows that the pin fof So the driving-disk F traverses the annular race of disk M, and as soon as said pin comes 1n contact with the slide P the latter is shifted around until it strikes against the opposite end of segmental flange N, and then the ring K is carried around as far as may be desired, because said ring K is coupled to the disk M, of which disk the flange N is an integral part. When the pin first strikes the slide, the impact can be felt at the knob or handle of spindles G. Consequently, this impact gives a false indication and leads a person to believe the tumbler has been shifted, when in reality it is the slide only that hasbeen set in motion. On this account it will be a difficult matter for a burglar to detect the movements of the look by manipulating the knob.

To change the combinations of any of the tumblers, the screws Q are first run out far enough to disengage their points from the groove g, (seen in Figs. 6 and 11,) and the disk M is then detached from the inelosing-ring K. Said disk is then turned so as to bring its arrow or other pointer in line with a new mark on the dial It, after which act the disk is reseated in the ring and secured by screwing in the retaining devices Q.

I claim as my invention- 1. A lock-case having a pair of stops or bearings, a e, and alatch-lever, D, pivoted at b to the bolt-slide B, said lever being provided with a tooth, d, fence (1, dog d, and detent d', in combination with the spindle G, carrying a notched driving-disk, F- f f", a series of gated rotating tumblers, H h h J, being mounted on an arbor, I, which arbor is axially in line with said spindle G, but disconnected therefrom, as herein described, and for the purpose stated.

2. In combination with a permutationlock provided with a notched driving-disk and a series of gated rotating tumblers arranged as herein described, the slide B of the bolt mechanism, the latch-lever D, pivoted thereto and furnished with a tooth, d, fence d, dog 61, and detent d, and the bridge'E, having a bearing, 0, said tooth being adapted to engage with said bearing, for the purpose specified.

3. A lock-tumbler consisting of the gated ring J K, provided with. teeth 70, with which latter are engaged the teeth m of a shiftable center piece or disk, Mm, said disk being furnished IIC with a reciprocating rotary slide, 1?, that is In testimony whereof I affix my signaturein IO actuated by a driving-pin, for the purpose presence of two witnesses. specified.

4:. The combination, in a lock-tumbler, 0f JACOB BAUM. 5 gated ring J K 7c, connterbore L, shiftable center piece, M m m N, ring O,reciprocati11g W'itnesses;

rotary slide 1?, and one or more screws, Q, JAMES H. LAYMAN, Whose points enter said center piece, for the THos. S. SPIVEY.

purpose described.

Correction in Letters Patent No. 364,467.

It is hereby-certified that in Letters Patent No. 364,467, granted J nne 7, 1887, upon the application of Jacob Baum, of Cincinnati, Ohio, for an improvement in Permutation-Locks, an error appears in the printed specification requiring correction as follows: In line 1 page 2, the word of should be inserted after the word rearg and that the Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Ofiice. I

Signed, counter-signed, and sealed, this 14th day of J nne, A. D. 1887.

H. L. MULDROW, Acting Secretary of the Interior.

[SEAL] Uonntersigned BENTON J. HALL,

Commissioner of Patents. 

